{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12374",
    "entityType": "User",
    "nonce": "0x1ab332cb38dca4442cb0170e5ccf25248cf3f1472d8a4dd5493aed4927bb1de2",
    "signature": "0x1fc20e49d31ef1217604879aa26f555c0a39da3f9c4863e00c19d14b9990f543034dcaedf42f223570e5a40334dff9e47c95971aa36af0840780663c308f543e1b",
    "signer": "0xBF5a33C091c6A8356D52a214899a761152Ae4570",
    "userId": "464521883"
  }
}